WO2003065059A1 - Measured value output device, measured value monitor, current value output device, and current monitor - Google Patents

Measured value output device, measured value monitor, current value output device, and current monitor Download PDF

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Publication number
WO2003065059A1
WO2003065059A1 PCT/JP2003/000770 JP0300770W WO03065059A1 WO 2003065059 A1 WO2003065059 A1 WO 2003065059A1 JP 0300770 W JP0300770 W JP 0300770W WO 03065059 A1 WO03065059 A1 WO 03065059A1
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WO
WIPO (PCT)
Prior art keywords
signal
output
current
value
output device
Prior art date
Application number
PCT/JP2003/000770
Other languages
French (fr)
Japanese (ja)
Inventor
Takao Kokubu
Norimiti Utida
Original Assignee
Kabushiki Kaisha Bridgestone
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kabushiki Kaisha Bridgestone filed Critical Kabushiki Kaisha Bridgestone
Priority to JP2003564600A priority Critical patent/JP4387197B2/en
Priority to CNB038029707A priority patent/CN1307424C/en
Priority to EP03703057A priority patent/EP1471359A4/en
Priority to US10/501,479 priority patent/US6987387B2/en
Publication of WO2003065059A1 publication Critical patent/WO2003065059A1/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/246—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains by varying the duration of individual pulses
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/2513—Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging

Definitions

  • Measurement value output device measurement value monitoring device, current value output device, and current monitoring device
  • the present invention relates to a device that captures an information signal such as a current, a displacement amount, or a pressure measured by a measuring instrument or various sensors, and outputs the measured value, and a current monitoring device using the device. Things. Background art
  • measured value output devices that measure the current flowing through conductors, the amount of displacement of an object to be measured, the pressure inside a container, etc., use current sensors, differential transformers, pressure sensors, and other sensors to measure
  • the measured analog signal is taken into a dedicated device, converted into a digital signal representing the magnitude of the measured value such as current, displacement, and pressure, and output to the outside.
  • a current value output device 60 used for a monitoring device of a production line motor an AC current i flowing through a power supply line 2 of the production line 1 is measured by a current measuring means 6 1
  • the measured current signal is amplified by the detection circuit 62, the magnitude of the current value is detected, and the amplified current signal is sent to the A / D converter 63.
  • the magnitude of the current value converted into the digital signal is output to the current monitoring means 80 via the microcomputer 70, and the time change of the measured current value is monitored.
  • the magnitude (measured value) of the detected current value is output as a digital value.
  • Dedicated equipment is required, and connecting to the Microcombo 70 depends on the accuracy of the measured values, but usually requires eight or more connection wires, so wiring is also difficult. there were.
  • the present invention has been made in view of the conventional problems, and has a simple configuration, and a measurement value output device that outputs a measurement value used for monitoring a measurement value every predetermined time, and a measurement that monitors the output value. It is an object to provide a value monitoring device, a current value output device that outputs a current value flowing through a power supply line or the like at predetermined time intervals, and a current monitoring device that monitors the current value. Disclosure of the invention
  • the present inventors have conducted intensive studies and have found that the magnitude of the measurement value detected by the sensor is not continuously output, that is, instead of being output as an analog signal, one pulse signal (digital signal) is provided at predetermined time intervals.
  • the present invention has been found that the above object can be achieved by outputting the information of the magnitude of the measured value as the pulse width of the pulse signal and outputting the measured value.
  • the invention described in claim 1 of the present invention is a measuring instrument output device that outputs a measured value measured by a measuring instrument or a sensor, and inputs the measured value, A signal converting means for converting the value into a time width corresponding to the magnitude, and a measurement value output for outputting an ON / OFF signal in which an ON state or an OFF state continues for a predetermined time at a time corresponding to the time width. Means. This makes it possible to output a signal representing the magnitude of the measured value at predetermined time intervals with a simple configuration.
  • the invention described in claim 2 is the measuring instrument output device according to claim 1, wherein the output from each of the measuring instruments or sensors is connected to a plurality of measuring instruments or sensors before the signal conversion means. Is provided with an input signal switching means for selecting and outputting to the signal conversion means, whereby it is possible to output a signal representing the magnitude of the measurement value of the plurality of measuring instruments or sensors.
  • the invention set forth in claim 3 is a measuring instrument output device for sequentially outputting measurement values measured by a plurality of measuring instruments or sensors, wherein A signal converting means for inputting a measured value measured by a sensor and converting the measured value into a time width corresponding to the magnitude, and an ON state or a FF for a predetermined time at a time corresponding to the time width.
  • a plurality of measurement value conversion devices including an ON / 0 FF signal that outputs a continuous ON / 0 FF signal are provided, and the plurality of converted ⁇ N / FFFF signals are sequentially output at predetermined time intervals. It is characterized by doing so. This makes it possible to output a plurality of signals representing the magnitude of the measured value to the series at predetermined time intervals with a simple configuration.
  • a pulse signal representing the measured value is output before the ON / OFF signal. Things.
  • the invention according to claim 5 is a measurement value monitoring device for monitoring the magnitude of a measurement value measured by a measuring device or a sensor, and the measurement value monitoring device according to any one of claims 1 to 4 And a monitoring means for monitoring the length of the ON time or OFF time of the 0 N / OFF signal output from the output device, wherein the ON / OFF signal of the ON / 0 FF signal is provided. The length of the FF time is measured and the above measured values are monitored.
  • An invention according to claim 6 is a current value output device that measures and outputs a current flowing through a conductor, and a current measurement unit that measures a current flowing through the conductor, and at predetermined time intervals, ON / OFF signal output means for sequentially outputting ONZO FF signals in which the ON state or the 0 FF state continues for a time corresponding to the magnitude of the measured current.
  • An invention according to claim 7 is a current value output device that measures and outputs a current flowing through a plurality of conductors, and a current measurement unit that measures a current flowing through the conductors, 0 N state or 0 FF state continues for the time corresponding to the magnitude of the measured current ON O NZO FF signal is sequentially output ⁇ ⁇ , ⁇ Current value conversion with FF signal output means A plurality of devices are provided, and the plurality of converted ⁇ NZ ⁇ FF signals are sequentially output at predetermined time intervals.
  • the invention according to claim 8 is the current value output device according to claim 7, wherein the on / off signal is detected before the ON / OFF signal, such as a lead of a wire to be measured.
  • a pulse signal representing an elephant is output.
  • the invention according to claim 9 is a current monitoring device for monitoring the magnitude of the current value measured by the current measuring means, and is described in any one of claims 6 to 8. And a monitoring means for monitoring the length of the ON / OFF time of the ON / OFF signal output from the current value output device.
  • the ON / OFF signal or the ON time of the ON / OFF signal continues for a predetermined time or longer.
  • FIG. 1 is a functional block diagram showing a configuration of a current value output device according to a first preferred embodiment of the present invention.
  • FIG. 2 is a view showing the operation of the current value output device according to the first preferred embodiment.
  • FIG. 3 is a diagram showing a configuration of a power supply current monitoring device according to the present invention.
  • FIG. 4 is a diagram showing the operation of the power supply current monitoring device according to the present invention.
  • FIG. 5 is a diagram showing another configuration of the current value output device according to the present invention.
  • FIG. 6 is a diagram showing another configuration of the current value output device according to the present invention.
  • FIG. 7 is a functional block diagram showing a configuration of a current value output device according to a second preferred embodiment of the present invention.
  • FIG. 8 is a view showing the operation of the current value output device according to the second preferred embodiment.
  • FIG. 9 is a diagram showing another configuration of the current value output device according to the present invention.
  • FIG. 10 is a diagram showing a configuration of a pressure monitoring device according to the third embodiment.
  • FIG. 11 is a diagram showing the operation of the pressure monitoring device according to the third embodiment.
  • FIG. 12 is a diagram showing another configuration of the current value output device according to the present invention.
  • FIG. 13 is a diagram showing another configuration of the current value output device according to the present invention.
  • FIG. 14 is a diagram showing a configuration of a conventional current value output device.
  • FIG. 15 is a diagram showing a method of monitoring a motor current value.
  • FIG. 1 is a diagram showing a configuration of a current value output device 10 according to the best mode 1.
  • reference numeral 11 denotes a current measuring means for measuring a current flowing through a power supply line 2 of a motor 1
  • 12 denotes a current measuring unit.
  • a detection circuit for amplifying the measured current signal to detect the magnitude of the current value; 13 is a signal converter for converting the detected magnitude of the current value into a time interval (duration);
  • An NZO FF signal output unit that sequentially outputs a 0 N / 0 FF signal in which the ON state or the OFF state continues for the above time interval for each time.
  • the current value output device 10 having the above configuration outputs one pulse signal (ON / OFF signal) when outputting the magnitude of the detected current value as a digital signal. Is expressed as the pulse width of the pulse signal. Specifically, the output level is switched from the 0 FF state to the 0 ° state every predetermined time T p , and after a lapse of a duration corresponding to the magnitude of the current value calculated by the signal conversion unit 13, Return the output from ON to OFF.
  • the current value is 2. 7 A, 2. 8A, when 2 were 7A and Heni spoon a predetermined time T p duration for each (pulse width) 2.7 s ⁇ c 2. 8 s 2. c, 2.7 sec ON / OFF signal (pulse signal) is output from output terminals 10 a and 1 Ob.
  • the current value output device 10 of the present example outputs the measured value as a binary signal.
  • two connection lines are used. (One signal line).
  • a power supply current monitoring device 20 as shown in FIG. 3 can be configured.
  • the power supply current monitoring device 20 includes the current value output device 10 having the above-described configuration.
  • the current value output device 10 measures the current value of the power supply line 2 of the driving device such as the motor 1 and outputs the measured value to ONZOFF.
  • the signal is output as the signal P k and the ON / OFF signal P k This monitors the motor current by monitoring the length of the ON time.Specifically, the ON time of the ON / OFF signal continues for a predetermined time or more after the current value output device 10.
  • a current increasing pulse generating means 21 for outputting a pulse signal
  • a counter 22 for integrating the number of pulses of the output pulses described above, and the number of pulses integrated in the counter 22 being a predetermined value
  • an alarm device 23 that issues an alarm when the current value exceeds the threshold value, monitors the motor current based on the output value of the current value output device 10 and increases the current flowing through the power supply line 2 for a predetermined period. It is configured to issue an alarm if continued.
  • the current increasing pulse generating means 21 For example, as shown in FIG. 4, a specified current value or a permissible current value is set from the start of the ONZO FF signal Pk. open the gate with respect to the oN / 0 FF signals P k to a predetermined time T z after corresponding to, in the time T z, if you continue the ⁇ _N / ⁇ _FF signals P k still oN state , This feed to the counter evening 2 2 by generating current increasing pulse p z is determined that the current value flowing to the power supply line is increased, the oN / 0 FF signal P k is returned to ⁇ FF state If so, it is only necessary to judge that the current value has not changed and not to count.
  • the number of pulses of the output pulses is counted. Then, when the counted number of pulses exceeds a predetermined value, the alarm device 23 is activated to generate an alarm, so that the current flowing through the power line 2 of the motor 1 abnormally increases. It is possible to warn the worker that the operation is being performed.
  • the means for monitoring the length of the ON / OFF time of the ON / OFF signal P k is not limited to the current increase pulse generating means 21 and the counter 22, but may be any other means. Other methods can be used, such as integrating the time or OFF time and monitoring the integrated value.
  • the current measuring means 11 for measuring the alternating current flowing through the power line 2 of the module 1 and the magnitude of the current value by amplifying the measured current value A detection circuit 12 for detecting the current value, a signal conversion unit 13 for converting the magnitude of the detected current value into a time interval (duration), and an ON state at predetermined time intervals for the time interval described above.
  • a 0 N / OFF signal output section 14 for sequentially outputting a 0 N / OFF signal in which the 0 FF state continues, and a pulse having a pulse width corresponding to the magnitude of the current value at predetermined time intervals. Since the signal is output as a signal (digital signal), a signal representing the magnitude of the measured value can be output at a predetermined time interval with a simple configuration. Further, by using the current value output device 10 having the above configuration, a power supply current monitoring device that monitors an increase in the current value flowing through the power supply line can be configured. At this time, since the signal output from the current value output device 10 is a binary signal, only two connection lines are required when connecting to the current monitoring means 20. It can be simplified.
  • the current value measured by the measuring means is, for example, In the case of evening current, the standard is set to 0 to 5 A or 0 to 1 A, and the output value (measurement signal) is often converted to a voltage and output. Therefore, as shown in FIG.
  • a signal conversion unit 33 that inputs the measured value and converts the measured value into a time width corresponding to the magnitude, and the above-described time
  • an instrument output device 30 equipped with an ON / OFF signal output section 34 that outputs an ON / OFF signal in which the ⁇ N state or OFF state continues for a time corresponding to the width
  • a measured value such as a current value measured as a current as an ON / OFF signal as described above.
  • the current measuring means 11Z includes a current sensor 11z and a detection circuit 12z for converting a current value detected by the current sensor 11z into a voltage
  • the voltage output from the detection circuit 12 z of the current measuring means 11 Z is input from the input terminals 30 a and 30 Ob to the signal conversion section 33, and this is input to the signal conversion section 33. Is converted to a time interval corresponding to the magnitude of the above voltage, and sent to the ON / OFF signal output unit 34, where the ON state or the ⁇ FF state is continued at predetermined time intervals for the time interval corresponding to the above current value ON / OFF signal should be output sequentially from output terminals 30c and 30d.
  • a measuring instrument output device 30Z incorporating only the detection circuit 32 may be configured.
  • the current measuring means 11 The measured current signal is input to the detection circuit 32, and the detection circuit 32 amplifies the current signal to detect the magnitude of the current value (voltage conversion). Send.
  • the following operations are the same as those of the current value output device 10 and the measuring device output device 30 and will not be described.
  • the current value output device 10 outputs a measured value of the current flowing through the conductor, and the current signal measured by the current measuring unit 11 is input and the current signal is output as the measured value of the current.
  • the measuring instrument output devices 30 and 30Z that output as values have been described, the present invention is not limited to this, and the displacement amount measured by various sensors such as a differential transformer, a pressure sensor, and a temperature sensor, It can be applied to a measurement value output device that outputs the magnitude of measurement values such as pressure and temperature in a container.
  • FIG. 7 is a diagram showing a configuration of a measurement value output device 30 T according to the second best mode, wherein 30 A to 30 C are those measured by a plurality of measuring instruments 11 A to 11 C.
  • a signal conversion unit 33 that converts the magnitude of the measured value into a time interval (duration); and an O NZO FF signal in which the ⁇ N state or FFFF state continues for the time interval at predetermined time intervals.
  • An ON / 0 FF signal output device which is a measurement value conversion device provided with ON / 0 FF signal output means 34 for output, and 35 is an output of each of the above ON / OFF signal output devices 30 A to 30 C.
  • a signal synthesizing circuit that synthesizes forces and sequentially outputs 0 N / 0 FF signals at predetermined time intervals that indicate the magnitude of each measurement value measured by each of the above measuring instruments 11 A to 11 C. , 30 c and 30 d are their output terminals.
  • a temperature measuring device including a temperature sensor 11a for measuring and a detecting circuit 12a thereof; a pressure measuring device including a pressure sensor 1lb for measuring the pressure in the caropressure device and a detecting circuit 12b; A current sensor 11c that measures the current supplied to the pressure device and its detection circuit 12c are used, and various measuring instruments such as a current measuring instrument that outputs each measured value of temperature, pressure, current, etc. as an analog signal are used.
  • V can.
  • the above ON / OF F signal output device 30 A to 30 C outputs one pulse signal (ON) when outputting the magnitude of the measured value of the detected temperature, pressure, current value, etc. as a digital signal. / OFF signal), and the information of the magnitude of the measured value is expressed as the pulse width of the pulse signal.
  • the output level is switched from the 0 FF state to the ON state at predetermined time intervals, and after a lapse of time corresponding to the magnitude of the measurement value calculated by the signal conversion unit 11, the output is switched from the ON state.
  • the signal ON / OFF signal is synthesized in the signal synthesizing circuit 35, and as shown in FIGS. 8 (a) and 8 (b), the ONZO FF signal is generated at predetermined time intervals. Are sequentially output.
  • the temperature is 80 ° C, the pressure 1. 5 MPa, a current value of 10 A, at the measurement time ti + Tp after the predetermined time T p has elapsed, temperature is 90 ° pressure
  • the measured value output device 10 outputs an ON / OFF signal with a pulse width corresponding to a temperature of 80 ° C of 8 sec. Pulse signal) is output from the output terminals 30c and 30d. Then, a pulse width corresponding to a pressure of 1.5 MPa is delayed by a time interval Ta from the ON / OFF signal Pi and is 1.5 sec. .
  • ONZOF F signal P 2 is output, further, the ONZOFF signal P 2 from delayed by a time interval T b, 10 a pulse width corresponding to the current value of a 1. Osec. of oN / oF F signal P 3 Is output.
  • the temperature (90 ° C) and the pressure (1.6 ° C) measured at the time ti + Tp MP a) and ON / OFF signals P 13 P 2 and P 3 having pulse widths corresponding to the current value (12 A) are sequentially output (however, T p >> T a , T b ).
  • the measurement value output device 30T converts the measurement values measured by the plurality of measuring instruments 11A to 11C into the time of the detected measurement values in time.
  • ONZ or FF state continues for the above time interval and converted to an interval ONZ ⁇ FF signal is sequentially output at predetermined time intervals 0 N / 0 FF signal output means 30 A to 30C, and each of the above ON / OFF A signal synthesizing circuit 35 for synthesizing the outputs of the signal output means 30A to 30C and sequentially outputting the ON / OFF signals at predetermined time intervals is provided, and a plurality of 0 N / Since the 0 FF signal is sequentially output at predetermined time intervals, a plurality of types of measurement values used for monitoring and the like can be output at predetermined time intervals with a simple configuration.
  • the measurement value output device 30 T is a binary signal, the magnitude of the measured values in the so that to sequentially output ON / OFF signal P have P 25 P 3 having a table Wath pulse width series Therefore, for example, when connecting to a micro-computer, only two connection lines (one signal line) are required, so that the equipment and cost are significantly lower than the conventional method. It is advantageous.
  • Examples of the ONZOFF signal output timing control unit 36 for example, the first ⁇ N / 0 FF signal output device 30 A in QN every predetermined time T p / OFF signal output terminal 30 c for outputting a measured value of the temperature, output from the 30d, and outputs the oN / 0 FF signals P 2 to the second oN / OFF signal output device every predetermined time T p + T a in 30B to output the measured value of the pressure, the measurement value of the current the third 0 N 0 in FF signal output device 30 C, the predetermined time T p + T a + T b controls the oN / OFF signal output device 30A ⁇ 30 C to output a ONZOFF signal P 3 each time the output If the configuration is A sequence of 0 N / 0 FF signals similar to that shown in FIG. 8 can be output. Best mode 3.
  • the best mode 2 described above describes a case where a plurality of measurement values of one device (pressurizing device) are output in series, it is also possible to output measurement values of a plurality of devices or devices in series. Further, by providing monitoring means for monitoring the length of the 0N / 0FF time of the 0N / 0FF signal output from the measured value output device 30T, 30 °, etc., the measured value is monitored. It is also possible to configure a measurement value monitoring device that performs measurement.
  • FIG. 10 is a diagram showing a configuration of a pressure monitoring device 40 as an example.
  • the pressure monitoring device 4 ⁇ monitors the pressure of k molding devices (not shown) at predetermined time intervals. , 15k and its detection circuit 16a, 1613, ..., 16k, and the detected pressure value is analogized.
  • the pressure value detected by the pressure detector 158 to 15 which outputs as a signal is measured by the 0 N / OFF signal output device 40A to 40K having the same configuration as the ON / OF signal output device 30.
  • the ON / OFF signal is output as an ON / OFF signal having a pulse width corresponding to the magnitude of the ON / OFF signal output timing control means 46 similar to the one used in the measured value output device 30M.
  • the pressure monitoring means 47 sequentially monitors the length of the ON time or the OFF time of each of the ON / OFF signals, and monitors the measured values of the respective pressures of the k molding apparatuses.
  • each ON / OFF signal a single bit may be added for each unit, but the molding devices are divided into groups of several units for each type of molding device and set temperature. , may be output with a start bit s l3 s 2, s 3 for each of the groups.
  • a plurality of ON / OF signal output devices 30 are connected. The case where the magnitude of each measurement value measured by a plurality of measuring instruments 11A to 11C is output as a pulse train of the ⁇ N / OFF signal has been described, but as shown in FIG.
  • the above measuring instruments 11A to: L1C are connected in front of the signal output device 30, and the output signals of the above measuring instruments 11A to 11C are selected and sent to the signal converter 33 of the ON / OFF signal output device 30.
  • a switching means 51 is provided, and a switching control means 52 for controlling the switching operation of the input signal switching means 51 at a preset time interval is provided to output the outputs from the measuring instruments 11A to 11C. It is also possible to configure a measurement value output device 50 that sequentially outputs a pulse train of 0N / ⁇ FF signal
  • the current values of k motors on a production line are measured by current sensors 17a, 17b,..., 17k, and their detection circuits 18a, 1 8b,..., 18 k, are detected by the current detectors 17 A to 17 K. These current values are input to the measurement output device 50, and the 0 N / 0 FF signals are sequentially output. It is also possible to output as a pulse train.
  • a 0 ⁇ / ⁇ FF signal in which the 0 ⁇ state or the 0FF state continues for a time corresponding to the magnitude of the measured value is output at every predetermined time.
  • a current measuring means for measuring a current flowing through the conductor and a NZO FF signal in which the ⁇ N state or the OFF state continues for a time corresponding to the magnitude of the measured current at predetermined time intervals.
  • Current value with output 0 N / ⁇ FF signal output means By configuring the output device, it is possible to measure and output the current value flowing through the conductor with a simple configuration.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

A current value output device comprises a measuring means such as a current measuring means (11) for measuring the alternating current flowing through the power source line (2) of a motor (1), a sensing circuit (12) for amplifying a measured value such as a measured current value to determine the magnitude of the measured value, a signal conversion section (13) for converting the determined value into a time interval (duration), and an ON/OFF signal output section (14) for sequentially outputting ON/Off signals maintaining an ON state or OFF state for the time interval at every predetermined time, so that the measured value of a motor current in a production line used for monitoring the measured value at every predetermined time is outputted at every predetermined time, as a pulse signal (digital signal) having a pulse width corresponding to the magnitude of the measured value.

Description

明 細 書 計測値出力装置、 計測値監視装置、 電流値出力装置、 及び、 電流監視装置 技術分野  Description Measurement value output device, measurement value monitoring device, current value output device, and current monitoring device
本発明は、 計測器や各種センサで計測される電流や変位量、 あるいは、 圧力な どの情報信号を取り込んで、 上記計測された計測値を出力する装置と、 この装置 を用いた電流監視装置に関するものである。 背景技術  The present invention relates to a device that captures an information signal such as a current, a displacement amount, or a pressure measured by a measuring instrument or various sensors, and outputs the measured value, and a current monitoring device using the device. Things. Background art
従来、 導線に流れる電流や、 測定物の変位量、 容器内の圧力などを計測する計 測値出力装置は、 電流センサ、 差動変圧器、 圧力センサなどの各種センサにより 電流、 変位量、 圧力などを計測し、 上記計測されたアナログ信号を専用の装置に 取り込み、 電流、 変位量、 圧力などの計測値の大きさを表わすデジタル信号に変 換して外部に出力する構成が一般的である。  Conventionally, measured value output devices that measure the current flowing through conductors, the amount of displacement of an object to be measured, the pressure inside a container, etc., use current sensors, differential transformers, pressure sensors, and other sensors to measure In general, the measured analog signal is taken into a dedicated device, converted into a digital signal representing the magnitude of the measured value such as current, displacement, and pressure, and output to the outside. .
例えば、 第 1 4図に示すような、 生産ラインのモー夕の監視装置に用いられる 電流値出力装置 6 0においては、 モ一夕 1の電源線 2に流れる交流電流 iを電流 計測手段 6 1で計測し、 この計測された電流信号を検出回路 6 2にて増幅して上 記電流値の大きさを検出した後これを A/D変換器 6 3に送り、 この AZD変換 器 6 3でデジタル信号に変換された電流値の大きさを、 マイクロコンピュ一夕 7 0を介して、 電流監視手段 8 0に出力し、 上記計測された電流値の時間変化を監 視するようにしていた。  For example, as shown in FIG. 14, in a current value output device 60 used for a monitoring device of a production line motor, an AC current i flowing through a power supply line 2 of the production line 1 is measured by a current measuring means 6 1 The measured current signal is amplified by the detection circuit 62, the magnitude of the current value is detected, and the amplified current signal is sent to the A / D converter 63. The magnitude of the current value converted into the digital signal is output to the current monitoring means 80 via the microcomputer 70, and the time change of the measured current value is monitored.
しかしながら、 上記従来の電流値出力装置 6 0では、 検出された電流値の大き さ （計測値） をデジタル値で出力するよゔにしているため、 上記 A/D変換器 6 3などのような専用の機器が必要であり、 更に、 マイクロコンビュ一夕 7 0へ接 続するには、 計測値の精度にもよるが、 通常、 8本以上の接続線が必要であるこ とから配線も大変であった。  However, in the above-described conventional current value output device 60, the magnitude (measured value) of the detected current value is output as a digital value. Dedicated equipment is required, and connecting to the Microcombo 70 depends on the accuracy of the measured values, but usually requires eight or more connection wires, so wiring is also difficult. there were.
また、 生産ラインのモー夕電流の監視などのように、 リアルタイムの計測が必 要でない用途の場合には、 第 1 5図に示すように、 所定時間毎に電流値を監視す れば十分であり、 上記のように常時計測値 （電流値） を出力する装置はオーバ一 スペックであり、 効率的ではなかった。 本発明は、 従来の問題点に鑑みてなされたもので、 簡単な構成で、 所定時間毎 の計測値の監視等に用いられる計測値を出力する計測値出力装置、 上記出力値を 監視する計測値監視装置、 及び、 所定時間毎に電源線などに流れる電流値を出力 する電流値出力装置、 上記電流値を監視する電流監視装置を提供することを目的 とする。 発明の開示 For applications that do not require real-time measurement, such as monitoring the production current of a production line, monitor the current value at predetermined time intervals as shown in Fig. 15. It is enough if the device that constantly outputs the measured value (current value) is over-specification and inefficient. The present invention has been made in view of the conventional problems, and has a simple configuration, and a measurement value output device that outputs a measurement value used for monitoring a measurement value every predetermined time, and a measurement that monitors the output value. It is an object to provide a value monitoring device, a current value output device that outputs a current value flowing through a power supply line or the like at predetermined time intervals, and a current monitoring device that monitors the current value. Disclosure of the invention
本発明者らは鋭意検討の結果、 センサで検出された計測値の大きさを連続的に 、 すなわち、 アナログ信号として出力するのではなく、 所定時間毎に 1個のパル ス信号 （デジタル信号） として出力するとともに、 上記計測値の大きさの情報を 上記パルス信号のパルス幅として表わすことにより、 上記目的を達成することが できることを見いだし本発明に到つたものである。  The present inventors have conducted intensive studies and have found that the magnitude of the measurement value detected by the sensor is not continuously output, that is, instead of being output as an analog signal, one pulse signal (digital signal) is provided at predetermined time intervals. The present invention has been found that the above object can be achieved by outputting the information of the magnitude of the measured value as the pulse width of the pulse signal and outputting the measured value.
すなわち、 本発明の請求の範囲 1に記載の発明は、 計測器あるいはセンサによ り計測された計測値を出力する計測器出力装置であって、 上記計測された計測値 を入力し、 上記計測値をその大きさに対応する時間幅に変換する信号変換手段と 、 所定の時間毎に、 上記時間幅に対応する時間だけ O N状態あるいは O F F状態 が継続する O Nノ O F F信号を出力する計測値出力手段とを備えたものである。 これにより、 簡単な構成で、 所定時間毎に計測値の大きさを表わす信号を出力す ることが可能となる。  That is, the invention described in claim 1 of the present invention is a measuring instrument output device that outputs a measured value measured by a measuring instrument or a sensor, and inputs the measured value, A signal converting means for converting the value into a time width corresponding to the magnitude, and a measurement value output for outputting an ON / OFF signal in which an ON state or an OFF state continues for a predetermined time at a time corresponding to the time width. Means. This makes it possible to output a signal representing the magnitude of the measured value at predetermined time intervals with a simple configuration.
請求の範囲 2に記載の発明は、 請求の範囲 1に記載の計測器出力装置において 、 上記信号変換手段の前段に、 複数の計測器あるいはセンサに接続され、 上記各 計測器あるいはセンサからの出力を選択して信号変換手段に出力する入力信号切 換手段を設けたもので、 これにより、 上記複数の計測器あるいはセンサの計測値 の大きさを表わす信号を出力することが可能となる。  The invention described in claim 2 is the measuring instrument output device according to claim 1, wherein the output from each of the measuring instruments or sensors is connected to a plurality of measuring instruments or sensors before the signal conversion means. Is provided with an input signal switching means for selecting and outputting to the signal conversion means, whereby it is possible to output a signal representing the magnitude of the measurement value of the plurality of measuring instruments or sensors.
また、 請求の範囲 3に記載の発明は、 複数の計測器あるいはセンサにより計測 された計測値を順次出力するための計測器出力装置であって、 計測器あるいはセ ンサにより計測された計測値を入力し、 上記計測値をその大きさに対応する時間 幅に変換する信号変換手段と、 所定の時間毎に、 上記時間幅に対応する時間だけ O N状態あるいは〇 F F状態が継続する O N/0 F F信号を出力する計測値出力 手段とを備えた計測値変換装置を複数台備え、 上記変換された複数の〇 N/〇 F F信号を所定の時間間隔で順次出力するようにしたことを特徴とするものである 。 これにより、 簡単な構成で、 所定時間毎に計測値の大きさを表わす複数の信号 をシリーズに出力することが可會 となる。 The invention set forth in claim 3 is a measuring instrument output device for sequentially outputting measurement values measured by a plurality of measuring instruments or sensors, wherein A signal converting means for inputting a measured value measured by a sensor and converting the measured value into a time width corresponding to the magnitude, and an ON state or a FF for a predetermined time at a time corresponding to the time width. A plurality of measurement value conversion devices including an ON / 0 FF signal that outputs a continuous ON / 0 FF signal are provided, and the plurality of converted 〇N / FFFF signals are sequentially output at predetermined time intervals. It is characterized by doing so. This makes it possible to output a plurality of signals representing the magnitude of the measured value to the series at predetermined time intervals with a simple configuration.
請求の範囲 4に記載の発明は、 請求の範囲 2または請求の範囲 3に記載の計測 値出力装置において、 上記 O N/O F F信号の前に、 当該計測値を表わすパルス 信号を出力するようにしたものである。  According to a fourth aspect of the present invention, in the measurement value output device according to the second or third aspect, a pulse signal representing the measured value is output before the ON / OFF signal. Things.
また、 請求の範囲 5に記載の発明は、 計測器あるいはセンサにより計測された 計測値の大きさを監視するための計測値監視装置であって、 請求の範囲 1〜請求 の範囲 4のいずれかに記載の計測値出力装置と、 この出力装置から出力された 0 N/O F F信号の O N時間または O F F時間の長さを監視する監視手段とを備え 、 上記 O N/0 F F信号の O N時間または 0 F F時間の長さを計測して上記計測 値を監視するようにしたものである。  The invention according to claim 5 is a measurement value monitoring device for monitoring the magnitude of a measurement value measured by a measuring device or a sensor, and the measurement value monitoring device according to any one of claims 1 to 4 And a monitoring means for monitoring the length of the ON time or OFF time of the 0 N / OFF signal output from the output device, wherein the ON / OFF signal of the ON / 0 FF signal is provided. The length of the FF time is measured and the above measured values are monitored.
また、 請求の範囲 6に記載の発明は、 導線に流れる電流を計測して出力する電 流値出力装置であって、 導線に流れる電流を計測する電流計測手段と、 所定の時 間毎に、 上記計測された電流の大きさに対応する時間だけ O N状態あるいは 0 F F状態が継続する O NZO F F信号を順次出力する O N/0 F F信号出力手段と を備えたものである。  An invention according to claim 6 is a current value output device that measures and outputs a current flowing through a conductor, and a current measurement unit that measures a current flowing through the conductor, and at predetermined time intervals, ON / OFF signal output means for sequentially outputting ONZO FF signals in which the ON state or the 0 FF state continues for a time corresponding to the magnitude of the measured current.
請求の範囲 7に記載の発明は、 複数の導線に流れる電流をそれそれ計測して出 力する電流値出力装置であって、 導線に流れる電流を計測する電流計測手段と、 所定の時間毎に、 上記計測された電流の大きさに対応する時間だけ 0 N状態ある いは 0 F F状態が継続する O NZO F F信号を順次出力する Ο Ν,Ο F F信号出 力手段とを備えた電流値変換装置を複数台備え、 上記変換された複数の〇 NZ〇 F F信号を所定の時間間隔で順次出力するようにしたものである。  An invention according to claim 7 is a current value output device that measures and outputs a current flowing through a plurality of conductors, and a current measurement unit that measures a current flowing through the conductors, 0 N state or 0 FF state continues for the time corresponding to the magnitude of the measured current ON O NZO FF signal is sequentially output 電流 電流, 電流 Current value conversion with FF signal output means A plurality of devices are provided, and the plurality of converted 〇NZ〇FF signals are sequentially output at predetermined time intervals.
請求の範囲 8に記載の発明は、 請求の範囲 7に記載の電流値出力装置において 、 上記 O N/O F F信号の前に、 計測される導線のコードなどのような、 検出対 象を表わすパルス信号を出力するようにしたものである。 The invention according to claim 8 is the current value output device according to claim 7, wherein the on / off signal is detected before the ON / OFF signal, such as a lead of a wire to be measured. A pulse signal representing an elephant is output.
また、 請求の範囲 9に記載の発明は、 電流計測手段により計測された電流値の 大きさを監視するための電流監視装置であって、 請求の範囲 6〜請求の範囲 8の いずれかに記載の電流値出力装置と、 この電流値出力装置から出力された O N/ 0 F F信号の 0 N時間又は O F F時間の長さを監視する監視手段とを備えたもの である。  The invention according to claim 9 is a current monitoring device for monitoring the magnitude of the current value measured by the current measuring means, and is described in any one of claims 6 to 8. And a monitoring means for monitoring the length of the ON / OFF time of the ON / OFF signal output from the current value output device.
請求の範囲 1 0に記載の発明は、 請求の範囲 9に記載の電流監視装置において 、 上記 O N/0 F F信号の O N時間又は 0 F F時間の長さが所定の時間以上継続 した場合にはパルス信号を出力する手段と、 上記出力されたパルスのパルス数を 積算する手段と、 上記積算されたパルス数が所定の値を超えたときに警報を発す る警報手段とを備えたものである。 図面の簡単な説明  According to a tenth aspect of the present invention, in the current monitoring device according to the ninth aspect, the ON / OFF signal or the ON time of the ON / OFF signal continues for a predetermined time or longer. Means for outputting a signal; means for integrating the number of pulses of the output pulses; and alarm means for issuing an alarm when the integrated number of pulses exceeds a predetermined value. BRIEF DESCRIPTION OF THE FIGURES
第 1図は、 本発明の最良の形態 1に係る電流値出力装置の構成を示す機能プロ ック図である。  FIG. 1 is a functional block diagram showing a configuration of a current value output device according to a first preferred embodiment of the present invention.
第 2図は、 本最良の形態 1に係る電流値出力装置の動作を示す図である。 第 3図は、 本発明による電源電流監視装置の構成を示す図である。  FIG. 2 is a view showing the operation of the current value output device according to the first preferred embodiment. FIG. 3 is a diagram showing a configuration of a power supply current monitoring device according to the present invention.
第 4図は、 本発明による電源電流監視装置の動作を示す図である。  FIG. 4 is a diagram showing the operation of the power supply current monitoring device according to the present invention.
第 5図は、 本発明による電流値出力装置の他の構成を示す図である。  FIG. 5 is a diagram showing another configuration of the current value output device according to the present invention.
第 6図は、 本発明による電流値出力装置の他の構成を示す図である。  FIG. 6 is a diagram showing another configuration of the current value output device according to the present invention.
第 7図は、 本発明の最良の形態 2に係る電流値出力装置の構成を示す機能プロ ック図である。  FIG. 7 is a functional block diagram showing a configuration of a current value output device according to a second preferred embodiment of the present invention.
第 8図は、 本最良の形態 2に係る電流値出力装置の動作を示す図である。 第 9図は、 本発明による電流値出力装置の他の構成を示す図である。  FIG. 8 is a view showing the operation of the current value output device according to the second preferred embodiment. FIG. 9 is a diagram showing another configuration of the current value output device according to the present invention.
第 1 0図は、 本最良の形態 3に係る圧力監視装置の構成を示す図である。 第 1 1図は、 本最良の形態 3に係る圧力監視装置の動作を示す図である。 第 1 2図は、 本発明による電流値出力装置の他の構成を示す図である。  FIG. 10 is a diagram showing a configuration of a pressure monitoring device according to the third embodiment. FIG. 11 is a diagram showing the operation of the pressure monitoring device according to the third embodiment. FIG. 12 is a diagram showing another configuration of the current value output device according to the present invention.
第 1 3図は、 本発明による電流値出力装置の他の構成を示す図である。  FIG. 13 is a diagram showing another configuration of the current value output device according to the present invention.
第 1 4図は、 従来の電流値出力装置の構成を示す図である。 第 15図は、 モー夕電流値の監視方法を示す図である。 発明を実施するための最良の形態 FIG. 14 is a diagram showing a configuration of a conventional current value output device. FIG. 15 is a diagram showing a method of monitoring a motor current value. BEST MODE FOR CARRYING OUT THE INVENTION
以下、 本発明の最良の形態について、 図面に基づき説明する。  Hereinafter, the best mode of the present invention will be described with reference to the drawings.
最良の形態 1. Best mode 1.
第 1図は、 本最良の形態 1に係る電流値出力装置 10の構成を示す図で、 同図 において、 11はモー夕 1の電源線 2に流れる電流を計測する電流計測手段、 1 2は上記計測された電流信号を増幅して電流値の大きさを検出する検出回路、 1 3は上記検出された電流値の大きさを時間間隔 （継続時間） に変換する信号変換 部、 14は所定時間毎に、 上記時間間隔だけ ON状態あるいは OFF状態が継続 する 0 N/0 F F信号を順次出力する◦ NZO F F信号出力部である。  FIG. 1 is a diagram showing a configuration of a current value output device 10 according to the best mode 1. In FIG. 1, reference numeral 11 denotes a current measuring means for measuring a current flowing through a power supply line 2 of a motor 1, and 12 denotes a current measuring unit. A detection circuit for amplifying the measured current signal to detect the magnitude of the current value; 13 is a signal converter for converting the detected magnitude of the current value into a time interval (duration); An NZO FF signal output unit that sequentially outputs a 0 N / 0 FF signal in which the ON state or the OFF state continues for the above time interval for each time.
上記構成の電流値出力装置 10は、 検出された電流値の大きさをデジタル信号 として出力する際に、 1個のパルス信号 （ON/OFF信号） として出力するも ので、 上記電流値の大きさの情報を上記パルス信号のパルス幅として表わす。 具体的には、 所定時間 Tp毎に出力レベルを 0 F F状態から 0 Ν状態に切換え 、 上記信号変換部 13で算出された電流値の大きさに相当する継続時間が経過し た後に、 上記出力を ON状態から OFF状態に戻すようにする。 これにより、 第 2図に示すように、 例えば、 電流値が 2. 7 A, 2. 8A， 2. 7Aと変ィ匕した 場合には、 所定時間 Tp毎に継続時間 （パルス幅） が 2. 7 s Θ c 2. 8 s Θ c, 2. 7 s e cである ON/OFF信号 （パルス信号） が出力端子 10 a , 1 Obから出力される。 The current value output device 10 having the above configuration outputs one pulse signal (ON / OFF signal) when outputting the magnitude of the detected current value as a digital signal. Is expressed as the pulse width of the pulse signal. Specifically, the output level is switched from the 0 FF state to the 0 ° state every predetermined time T p , and after a lapse of a duration corresponding to the magnitude of the current value calculated by the signal conversion unit 13, Return the output from ON to OFF. Thus, as shown in FIG. 2, for example, the current value is 2. 7 A, 2. 8A, when 2 were 7A and Heni spoon a predetermined time T p duration for each (pulse width) 2.7 s 信号 c 2. 8 s 2. c, 2.7 sec ON / OFF signal (pulse signal) is output from output terminals 10 a and 1 Ob.
このように、 本例の電流値出力装置 10は、 計測値を 2値の信号として出力す るようにしているので、 例えば、 マイクロコンビユー夕などへ接続する際にも、 接続線が 2本 （信号線は 1本） で済むといった利点を有する。  As described above, the current value output device 10 of the present example outputs the measured value as a binary signal. For example, when connecting to a micro-combination device, two connection lines are used. (One signal line).
また、 本発明による電流値出力装置 10を用いることにより、 例えば、 第 3図 に示すような電源電流監視装置 20を構成することが可能である。  By using the current value output device 10 according to the present invention, for example, a power supply current monitoring device 20 as shown in FIG. 3 can be configured.
この電源電流監視装置 20は、 上記構成の電流値出力装置 10を備え、 この電 流値出力装置 10により、 モ一夕 1などの駆動装置の電源線 2の電流値を計測し 、 これを ONZOFF信号 Pkで出力するとともに、 この ON/OFF信号 Pkの O N時間の長さを監視してモー夕電流を監視するもので、 具体的には、 上記電流 値出力装置 1 0の後段に、 上記 O N/O F F信号の O N時間が所定の時間以上継 続した場合にはパルス信号を出力する電流増加パルス発生手段 2 1と、 上記出力 されたパルスのパルス数を積算するカウン夕 2 2と、 このカウン夕 2 2で積算さ れたパルス数が所定の値を超えたときに警報を発する警報装置 2 3とを備え、 上 記電流値出力装置 1 0の出力値に基づいてモー夕電流を監視するとともに、 上記 電源線 2に流れる電流が所定期間増加し続けた場合には警報を発するように構成 したものである。 The power supply current monitoring device 20 includes the current value output device 10 having the above-described configuration. The current value output device 10 measures the current value of the power supply line 2 of the driving device such as the motor 1 and outputs the measured value to ONZOFF. The signal is output as the signal P k and the ON / OFF signal P k This monitors the motor current by monitoring the length of the ON time.Specifically, the ON time of the ON / OFF signal continues for a predetermined time or more after the current value output device 10. In this case, a current increasing pulse generating means 21 for outputting a pulse signal, a counter 22 for integrating the number of pulses of the output pulses described above, and the number of pulses integrated in the counter 22 being a predetermined value And an alarm device 23 that issues an alarm when the current value exceeds the threshold value, monitors the motor current based on the output value of the current value output device 10 and increases the current flowing through the power supply line 2 for a predetermined period. It is configured to issue an alarm if continued.
上記電流増加パルス発生手段 2 1としては様々な構成が考えられるが、 例えば 、 第 4図に示すように、 上記 O NZO F F信号 Pkの立ち上げ時から、 規定の電 流値あるいは許容電流値に対応する所定の時間 Tz後に上記 O N/0 F F信号 Pk に対してゲートを開き、 上記時間 Tzにおいて、 上記〇N/〇F F信号 Pkがまだ O N状態を継続している場合には、 上記電源線に流れる電流値が増加していると 判断して電流増加パルス p zを発生させてこれをカウン夕 2 2に送り、 上記 O N /0 F F信号 Pkが〇 F F状態に戻っていれば電流値は変化していないと判断し てカウントしないようにすればよい。 Various configurations are conceivable as the current increasing pulse generating means 21. For example, as shown in FIG. 4, a specified current value or a permissible current value is set from the start of the ONZO FF signal Pk. open the gate with respect to the oN / 0 FF signals P k to a predetermined time T z after corresponding to, in the time T z, if you continue the 〇_N / 〇_FF signals P k still oN state , This feed to the counter evening 2 2 by generating current increasing pulse p z is determined that the current value flowing to the power supply line is increased, the oN / 0 FF signal P k is returned to 〇 FF state If so, it is only necessary to judge that the current value has not changed and not to count.
カウン夕 2 2では上記出力されたパルスのパルス数をカウントする。 そして、 このカウントされたパルス数が所定の値を超えたときに、 警報装置 2 3を作動さ せて警報を発するようにすれば、 モー夕 1の電源線 2に流れる電流が異常に増加 していることを作業者に警告することが可能となる。  In the counter 22, the number of pulses of the output pulses is counted. Then, when the counted number of pulses exceeds a predetermined value, the alarm device 23 is activated to generate an alarm, so that the current flowing through the power line 2 of the motor 1 abnormally increases. It is possible to warn the worker that the operation is being performed.
なお、 上記 O N/O F F信号 Pkの O N時間あるいは O F F時間の長さを監視 する手段については、 上記電流増加パルス発生手段 2 1とカウン夕 2 2とから構 成するものに限らず、 上記 O N時間あるいは O F F時間を積分してその積分値を 監視するなど、 他の方法を用いることも可能である。 このように、 本最良の形態 1によれば、 モ一夕 1の電源線 2に流れる交流電流 を計測する電流計測手段 1 1と、 上記計測された電流値を増幅して電流値の大き さを検出する検出回路 1 2と、 上記検出された電流値の大きさを時間間隔 （継続 時間） に変換する信号変換部 1 3と、 所定時間毎に、 上記時間間隔だけ O N状態 あるいは 0 F F状態が継続する 0 N/O F F信号を順次出力する 0 N/0 F F信 号出力部 1 4とを備え、 所定時間毎に、 上記電流値の大きさに対応するパルス幅 を有するパルス信号 （デジタル信号） として出力するようにしたので、 簡単な構 成で、 所定時間毎に計測値の大きさを表わす信号を出力することができる。 また、 上記構成の電流値出力装置 1 0を用いることにより、 電源線に流れる電 流値の増加を監視する電源電流監視装置を構成することができる。 このとき、 上 記電流値出力装置 1 0から出力される信号は 2値の信号であるので、 電流監視手 段 2 0へ接続する際にも接続線が 2本で済むので、 装置の構成を簡易化すること ができる。 The means for monitoring the length of the ON / OFF time of the ON / OFF signal P k is not limited to the current increase pulse generating means 21 and the counter 22, but may be any other means. Other methods can be used, such as integrating the time or OFF time and monitoring the integrated value. As described above, according to the best mode 1, the current measuring means 11 for measuring the alternating current flowing through the power line 2 of the module 1 and the magnitude of the current value by amplifying the measured current value A detection circuit 12 for detecting the current value, a signal conversion unit 13 for converting the magnitude of the detected current value into a time interval (duration), and an ON state at predetermined time intervals for the time interval described above. Or a 0 N / OFF signal output section 14 for sequentially outputting a 0 N / OFF signal in which the 0 FF state continues, and a pulse having a pulse width corresponding to the magnitude of the current value at predetermined time intervals. Since the signal is output as a signal (digital signal), a signal representing the magnitude of the measured value can be output at a predetermined time interval with a simple configuration. Further, by using the current value output device 10 having the above configuration, a power supply current monitoring device that monitors an increase in the current value flowing through the power supply line can be configured. At this time, since the signal output from the current value output device 10 is a binary signal, only two connection lines are required when connecting to the current monitoring means 20. It can be simplified.
なお、 上記最良の形態 1では、 電流計測手段 1 1及び検出回路 1 2を内蔵した 形態の電流値出力装置 1 0について説明したが、 一般に、 計測手段で測定する電 流値は、 例えば、 モー夕電流ならば 0〜 5 Aや 0〜1 Aなどのように規格ィ匕され ており、 その出力値 （計測信号） も電圧換算されて出力される場合が多い。 したがって、 第 5図に示すような、 計測された計測値を入力し、 上記計測値を その大きさに対応する時間幅に変換する信号変換部 3 3と、 所定の時間毎に、 上 記時間幅に対応する時間だけ、 〇N状態あるいは O F F状態が継続する O N/0 F F信号を出力する 0 N/O F F信号出力部 3 4とを備えた計測器出力装置 3 0 を用いることにより、 モー夕電流等の計測された電流値などの計測値を上記のよ うな O N/O F F信号として出力することも可能である。  Although the best mode 1 described above has described the current value output device 10 having a mode in which the current measuring means 11 and the detection circuit 12 are built in, the current value measured by the measuring means is, for example, In the case of evening current, the standard is set to 0 to 5 A or 0 to 1 A, and the output value (measurement signal) is often converted to a voltage and output. Therefore, as shown in FIG. 5, a signal conversion unit 33 that inputs the measured value and converts the measured value into a time width corresponding to the magnitude, and the above-described time By using an instrument output device 30 equipped with an ON / OFF signal output section 34 that outputs an ON / OFF signal in which the 〇N state or OFF state continues for a time corresponding to the width, It is also possible to output a measured value such as a current value measured as a current as an ON / OFF signal as described above.
具体的には、 電流計測手段 1 1 Zが、 電流センサ 1 1 zとこの電流センサ 1 1 zで検出された電流値を電圧に変換する検出回路 1 2 zを備えたものである場合 には、 上記信号変換部 3 3に、 上記電流計測手段 1 1 Zの検出回路 1 2 zから出 力された電圧を入力端子 3 0 a , 3 O bから入力し、 これを信号変換部 3 3にて 上記電圧の大きさに対応する時間間隔に変換して O N/0 F F信号出力部 3 4に 送って、 所定時間毎に、 上記電流値に相当する時間間隔だけ O N状態あるいは〇 F F状態が継続する O N/O F F信号を、 出力端子 3 0 c， 3 0 dから順次出力 するようにすればよい。  Specifically, when the current measuring means 11Z includes a current sensor 11z and a detection circuit 12z for converting a current value detected by the current sensor 11z into a voltage, The voltage output from the detection circuit 12 z of the current measuring means 11 Z is input from the input terminals 30 a and 30 Ob to the signal conversion section 33, and this is input to the signal conversion section 33. Is converted to a time interval corresponding to the magnitude of the above voltage, and sent to the ON / OFF signal output unit 34, where the ON state or the 〇FF state is continued at predetermined time intervals for the time interval corresponding to the above current value ON / OFF signal should be output sequentially from output terminals 30c and 30d.
あるいは、 第 6図に示すように、 検出回路 3 2のみを内蔵した計測器出力装置 3 0 Zを構成してもよい。 この計測器出力装置 3 0 Zでは、 電流計測手段 1 1で 計測された電流信号を検出回路 3 2に入力し、 この検出回路 3 2にて上記電流信 号を増幅して電流値の大きさを検出し （電圧変換し） 、 上記信号変換部 3 3に送 る。 なお、 以下の動作については、 上記電流値出力装置 1 0、 計測器出力装置 3 0と同様であるので省略する。 Alternatively, as shown in FIG. 6, a measuring instrument output device 30Z incorporating only the detection circuit 32 may be configured. In this measuring instrument output device 30 Z, the current measuring means 11 The measured current signal is input to the detection circuit 32, and the detection circuit 32 amplifies the current signal to detect the magnitude of the current value (voltage conversion). Send. The following operations are the same as those of the current value output device 10 and the measuring device output device 30 and will not be described.
また、 上記例では、 導線に流れる電流の計測値を出力する電流値出力装置 1 0 と、 電流計測手段 1 1で計測された電流信号を入力してこれを電流の計測値を出 力する電流値として出力する計測器出力装置 3 0 , 3 0 Zについて説明したが、 本発明はこれに限るものではなく、 差動変圧器、 圧力センサ、 温度センサなどの 各種センサにより計測された変位量、 容器内の圧力、 温度などの計測値の大きさ を出力する計測値出力装置に適用することが可能である。  In the above example, the current value output device 10 outputs a measured value of the current flowing through the conductor, and the current signal measured by the current measuring unit 11 is input and the current signal is output as the measured value of the current. Although the measuring instrument output devices 30 and 30Z that output as values have been described, the present invention is not limited to this, and the displacement amount measured by various sensors such as a differential transformer, a pressure sensor, and a temperature sensor, It can be applied to a measurement value output device that outputs the magnitude of measurement values such as pressure and temperature in a container.
また、 上記のような各種センサの出力だけではなく、 計測器で計測した周波数 を F— V変換した周波数値を出力するような出力装置を構成することも可能であ る。 最良の形態 2 .  It is also possible to configure an output device that outputs not only the output of the various sensors as described above but also a frequency value obtained by converting the frequency measured by the measuring instrument into FV. Best mode 2.
上記最良の形態 1では、 電流計測手段 1 1のような、 1台の計測器あるいはセ ンサにより計測された計測値を出力する出力装置について説明したが、 上記計測 器出力装置 3 0， 3 0 Zを複数台用いることにより、 複数台の計測器あるいはセ ンサにより計測された計測値を出力する出力装置を構成することができる。 第 7図は、 本最良の形態 2に係る計測値出力装置 3 0 Tの構成を示す図で、 3 0 A〜 3 0 Cは複数の計測器 1 1 A〜 1 1 Cで計測されたそれそれの計測値の大 きさを時間間隔 （継続時間） に変換する信号変換部 3 3と、 所定時間毎に、 上記 時間間隔だけ〇 N状態あるいは〇 F F状態が継続する O NZO F F信号を順次出 力する O N/0 F F信号出力手段 3 4とを備えた計測値変換装置である O N/0 F F信号出力装置、 3 5は上記各 O N/O F F信号出力装置 3 0 A〜3 0 Cの出 力を合成して、 上記各計測器 1 1 A〜1 1 Cで計測されたそれそれの計測値の大 きさを表わす 0 N/0 F F信号を所定の時間間隔で順次出力する信号合成回路、 3 0 c , 3 0 dはその出力端子である。  In the above-described best mode 1, an output device, such as the current measuring means 11, which outputs a measurement value measured by one measuring instrument or sensor has been described. By using a plurality of Zs, it is possible to configure an output device that outputs measurement values measured by a plurality of measuring instruments or sensors. FIG. 7 is a diagram showing a configuration of a measurement value output device 30 T according to the second best mode, wherein 30 A to 30 C are those measured by a plurality of measuring instruments 11 A to 11 C. A signal conversion unit 33 that converts the magnitude of the measured value into a time interval (duration); and an O NZO FF signal in which the 〇N state or FFFF state continues for the time interval at predetermined time intervals. An ON / 0 FF signal output device, which is a measurement value conversion device provided with ON / 0 FF signal output means 34 for output, and 35 is an output of each of the above ON / OFF signal output devices 30 A to 30 C. A signal synthesizing circuit that synthesizes forces and sequentially outputs 0 N / 0 FF signals at predetermined time intervals that indicate the magnitude of each measurement value measured by each of the above measuring instruments 11 A to 11 C. , 30 c and 30 d are their output terminals.
上記計測器 1 1 A〜1 1 Cとしては、 例えば、 図示しない加圧装置内の温度を 測定する温度センサ 11 aとその検出回路 12 aとを備えた温度計測器、 上記カロ 圧装置内の圧力を測定する圧力センサ 1 lbとその検出回路 12 bとを備えた圧 力計測器、 加圧装置に供給する電流を測定する電流センサ 11 cとその検出回路 12 cとを備え、 温度、 圧力、 電流などの各計測値をアナログ信号として出力す る電流計測器などの各種計測器を用 Vヽることができる。 As the above measuring instruments 11 A to 11 C, for example, the temperature in a pressure device (not shown) A temperature measuring device including a temperature sensor 11a for measuring and a detecting circuit 12a thereof; a pressure measuring device including a pressure sensor 1lb for measuring the pressure in the caropressure device and a detecting circuit 12b; A current sensor 11c that measures the current supplied to the pressure device and its detection circuit 12c are used, and various measuring instruments such as a current measuring instrument that outputs each measured value of temperature, pressure, current, etc. as an analog signal are used. V can.
上記 ON/OF F信号出力装置 30 A〜 30 Cは、 それそれ、 検出された温度 、 圧力、 電流値等の計測値の大きさをデジタル信号として出力する際に、 1個の パルス信号 （ON/OFF信号） として出力するもので、 上記計測値の大きさの 情報を上記パルス信号のパルス幅として表わす。  The above ON / OF F signal output device 30 A to 30 C outputs one pulse signal (ON) when outputting the magnitude of the measured value of the detected temperature, pressure, current value, etc. as a digital signal. / OFF signal), and the information of the magnitude of the measured value is expressed as the pulse width of the pulse signal.
具体的には所定時間毎に出力レベルを 0 F F状態から ON状態に切換え、 上記 信号変換部 11で算出された計測値の大きさに相当する継続時間が経過した後に 、 上記出力を ON状態から OFF状態に戻すようにするとともに、 信号合成回路 35において、 上記各 ON/OFF信号を合成し、 第 8図 （a) , (b) に示す ように、 所定の時間間隔で上記各 ONZO F F信号を順次出力する。  Specifically, the output level is switched from the 0 FF state to the ON state at predetermined time intervals, and after a lapse of time corresponding to the magnitude of the measurement value calculated by the signal conversion unit 11, the output is switched from the ON state. In addition to returning to the OFF state, the signal ON / OFF signal is synthesized in the signal synthesizing circuit 35, and as shown in FIGS. 8 (a) and 8 (b), the ONZO FF signal is generated at predetermined time intervals. Are sequentially output.
例えば、 ある時刻 1 において、 温度が 80°C、 圧力が 1. 5MPa、 電流値 が 10 Aであり、 所定時間 Tpが経過した後の計測時間 ti + Tpにおいては、 温 度が 90° 圧力が 1. 6MPa、 電流値が 12 Aであったとすると、 計測値出 力装置 10では、 時刻 に対応して、 80°Cの温度に相当するパルス幅が◦. 8 s e c の ON/OFF信号 （パルス信号） が出力端子 30 c, 30dか ら出力され、 次いで、 上記 ON/OFF信号 Piから時間間隔 Taだけ遅れて、 1 . 5 MP aの圧力に相当するパルス幅が 1. 5 s e c. の ONZOF F信号 P2 が出力され、 更に、 上記 ONZOFF信号 P2から時間間隔 Tbだけ遅れて、 10 Aの電流値に相当するパルス幅が 1. Osec. の ON/OF F信号 P3が出力 される。 For example, at a certain time 1, the temperature is 80 ° C, the pressure 1. 5 MPa, a current value of 10 A, at the measurement time ti + Tp after the predetermined time T p has elapsed, temperature is 90 ° pressure If the current value is 1.6 MPa and the current value is 12 A, the measured value output device 10 outputs an ON / OFF signal with a pulse width corresponding to a temperature of 80 ° C of 8 sec. Pulse signal) is output from the output terminals 30c and 30d. Then, a pulse width corresponding to a pressure of 1.5 MPa is delayed by a time interval Ta from the ON / OFF signal Pi and is 1.5 sec. . ONZOF F signal P 2 is output, further, the ONZOFF signal P 2 from delayed by a time interval T b, 10 a pulse width corresponding to the current value of a 1. Osec. of oN / oF F signal P 3 Is output.
そして、 上記 0 N / 0 F F信号 P iから所定時間 T pが経過した時刻 t + T pに 対応して、 時刻 ti + Tpにおいて計測された上記温度 （90°C)、 圧力 （1. 6 MP a)、 及び、 電流値 ( 12 A) に相当するパルス幅を有する ON/OFF信 号 P13 P2， P3が順次出力される （但し、 Tp》Ta， Tb)。 Then, corresponding to the time t + Tp at which the predetermined time Tp has elapsed from the 0N / 0FF signal Pi, the temperature (90 ° C) and the pressure (1.6 ° C) measured at the time ti + Tp MP a) and ON / OFF signals P 13 P 2 and P 3 having pulse widths corresponding to the current value (12 A) are sequentially output (however, T p >> T a , T b ).
なお、 このとき、 各 0^1/0??信号卩1, P23 P3の前に、 当該計測値を表 わすパルス幅の小さなパルス信号 （スタートビット） Sl， s2, s3を出力する ようにしておけば、 上記出力される ON/OFF信号 Pl3 P2, P3がどの計測 値を指しているかを明確に区別することが可能となる。 At this time, before each 0 ^ 1/0 ?? signal卩1, P 23 P 3, Table the measured value Small pulse signal Wath pulse width (start bit) Sl, if and to output the s 2, s 3, or ON / OFF signal P l3 P 2, P 3 being the output points to which measurements Can be clearly distinguished.
このように、 本最良の形態 2の計測値出力装置 30 Tは、 複数の計測器 11 A 〜11 Cで計測されたそれそれの計測値を、 上記検出された計測値の大きさを時 間間隔に変換し上記時間間隔だけ ON状態あるいは 0 F F状態が継続する ONZ 〇 F F信号を所定の時間毎に順次出力する 0 N/0 F F信号出力手段 30 A〜 3 0Cと、 上記各 ON/OFF信号出力手段 30A〜30 Cの出力を合成して、 各 ON/OFF信号を所定の時間間隔で順次出力する信号合成回路 35を備え、 上 記各計測値の大きさを表わす複数の 0 N/0 F F信号を所定の時間間隔で順次出 力するようにしたので、 簡単な構成で、 監視等に用いられる複数種類の計測値を 所定時間毎に出力することができる。  As described above, the measurement value output device 30T according to the present best mode 2 converts the measurement values measured by the plurality of measuring instruments 11A to 11C into the time of the detected measurement values in time. ONZ or FF state continues for the above time interval and converted to an interval ONZ 〇 FF signal is sequentially output at predetermined time intervals 0 N / 0 FF signal output means 30 A to 30C, and each of the above ON / OFF A signal synthesizing circuit 35 for synthesizing the outputs of the signal output means 30A to 30C and sequentially outputting the ON / OFF signals at predetermined time intervals is provided, and a plurality of 0 N / Since the 0 FF signal is sequentially output at predetermined time intervals, a plurality of types of measurement values used for monitoring and the like can be output at predetermined time intervals with a simple configuration.
また、 計測値出力装置 30 Tは、 2値の信号である、 上記計測値の大きさを表 わすパルス幅を有する ON/OFF信号 Pい P25 P3をシリーズに順次出力す るようにしているので、 例えば、 マイクロコンビユー夕などへ接続する際にも、 接続線が 2本 （信号線は 1本） で済むので、 従来の方法に比較して、 設備的にも コスト的にも著しく有利である。 Further, the measurement value output device 30 T is a binary signal, the magnitude of the measured values in the so that to sequentially output ON / OFF signal P have P 25 P 3 having a table Wath pulse width series Therefore, for example, when connecting to a micro-computer, only two connection lines (one signal line) are required, so that the equipment and cost are significantly lower than the conventional method. It is advantageous.
なお、 上記最良の形態 2では、 信号合成回路 35を用いて、 上記 ON/OFF 信号 Pl3 P2, P3をシリーズに順次出力するようにしたが、 上記信号合成回路 35に代えて、 第 9図に示すように、 各 ONZOFF信号 P15 P2， P3の出力 夕イミングを制御する ON/0 F F信号出力タイミング制御手段 36を備えた計 測値出力装置 30 Mを用いても同様の効果を得ることができる。 In the best mode 2, using a signal combining circuit 35, but so as to sequentially output the ON / OFF signal P l3 P 2, P 3 series, in place of the signal combining circuit 35, the as shown in FIG. 9, the same with each ONZOFF signal P 15 P 2, P 3 of the output evening meter measuring value output device provided with oN / 0 FF signal output timing control unit 36 for controlling the timing 30 M The effect can be obtained.
上記 ONZOFF信号出力タイミング制御手段 36としては、 例えば、 温度の 計測値を出力する第 1の〇 N/0 F F信号出力装置 30 Aでは所定時間 Tp毎に QN/OFF信号 を出力端子 30 c, 30dから出力し、 圧力の計測値を出 力する第 2の ON/OFF信号出力装置 30Bでは所定時間 Tp+Ta毎に ON/ 0 F F信号 P2を出力し、 電流値の計測値を出力する第 3の 0 N 0 F F信号出 力装置 30 Cでは、 所定時間 Tp+Ta+Tb毎に ONZOFF信号 P3を出力する ように ON/OFF信号出力装置 30A〜30 Cを制御する構成とすれば、 上記 第 8図と同様の 0 N/ 0 F F信号の列を出力することができる。 最良の形態 3. Examples of the ONZOFF signal output timing control unit 36, for example, the first 〇 N / 0 FF signal output device 30 A in QN every predetermined time T p / OFF signal output terminal 30 c for outputting a measured value of the temperature, output from the 30d, and outputs the oN / 0 FF signals P 2 to the second oN / OFF signal output device every predetermined time T p + T a in 30B to output the measured value of the pressure, the measurement value of the current the third 0 N 0 in FF signal output device 30 C, the predetermined time T p + T a + T b controls the oN / OFF signal output device 30A～30 C to output a ONZOFF signal P 3 each time the output If the configuration is A sequence of 0 N / 0 FF signals similar to that shown in FIG. 8 can be output. Best mode 3.
上記最良の形態 2では、 1つの装置 （加圧装置） の複数の計測値をシリーズで 出力する場合について説明したが、 複数の装置あるいは機器の計測値をシリーズ で出力することも可能である。 更には、 上記計測値出力装置 30 T， 30Μ等の 出力である 0 N/0 F F信号の 0 Ν時間または 0 F F時間の長さを監視する監視 手段を設けることにより、 計測値の値を監視する計測値監視装置を構成すること も可能である。  Although the best mode 2 described above describes a case where a plurality of measurement values of one device (pressurizing device) are output in series, it is also possible to output measurement values of a plurality of devices or devices in series. Further, by providing monitoring means for monitoring the length of the 0N / 0FF time of the 0N / 0FF signal output from the measured value output device 30T, 30 °, etc., the measured value is monitored. It is also possible to configure a measurement value monitoring device that performs measurement.
第 10図はその一例である圧力監視装置 40の構成を示す図で、 この圧力監視 装置 4◦は、 図示しない k台のモールド装置の圧力を所定時間毎に監視する装置 で、 k台のモ一ルド装置それそれに取付けられた圧力センサ 15 a, 15b, ·· ··， 15k、 及び、 その検出回路 16 a, 1613， ····， 16kを備え、 検出し た圧力値をそれそれアナログ信号として出力する圧力検出装置 15八〜15 で 検出された圧力値の大きさを、 上記 ON/OF F信号出力装置 30と同構成の 0 N/OFF信号出力装置 40A~40Kにより、 各圧力値の大きさに相当するパ ルス幅を有する ONノ OFF信号として出力するもので、 ここでは、 上記計測値 出力装置 30Mで用いたものと同様の、 ON/OFF信号出力タイミング制御手 段 46により、 第 11図に示すようなパルス列を、 出力端子 40 a, 40 bから 、 0 N/0 F F信号の〇 N時間または OFF時間の長さを監視する圧力監視手段 47に出力する。圧力監視手段 47では、 上記各 ON/OFF信号の ON時間ま たは OFF時間の長さを順次監視して、 上記 k台のモールド装置のそれそれの圧 力の計測値を監視する。  FIG. 10 is a diagram showing a configuration of a pressure monitoring device 40 as an example. The pressure monitoring device 4◦ monitors the pressure of k molding devices (not shown) at predetermined time intervals. , 15k and its detection circuit 16a, 1613, ..., 16k, and the detected pressure value is analogized. The pressure value detected by the pressure detector 158 to 15 which outputs as a signal is measured by the 0 N / OFF signal output device 40A to 40K having the same configuration as the ON / OF signal output device 30. The ON / OFF signal is output as an ON / OFF signal having a pulse width corresponding to the magnitude of the ON / OFF signal output timing control means 46 similar to the one used in the measured value output device 30M. A pulse train as shown in FIG. 11 is output from the output terminals 40a and 40b to the 0 N / 0 FF signal. And outputs to the pressure monitoring means 47 for monitoring the length of N times or OFF time. The pressure monitoring means 47 sequentially monitors the length of the ON time or the OFF time of each of the ON / OFF signals, and monitors the measured values of the respective pressures of the k molding apparatuses.
このとき、 上記各 ON/OFF信号のパルス列としては、 1台毎にス夕一トビ ットを付けても良いが、 モールド装置の種類や設定温度毎にモールド装置を数台 毎のグループに分け、 上記グループ毎にスタートビット sl3 s2， s3を付けて 出力するようにしてもよい。 なお、 上記最良の形態 2, 3では、 複数台の ON/OF F信号出力装置 30を 用いて複数の計測器 11A〜11 Cで計測されたそれそれの計測値の大きさを〇 N/OFF信号のパルス列として出力する場合について説明したが、 第 12図に 示すように、 ON/OFF信号出力装置 30の前段に、 上記計測器 11A〜： L 1 C接続され、 上記各計測器 11A〜11Cの出力を選択して ON/OFF信号出 力装置 30の信号変換部 33に送る入力信号切換手段 51を設けるとともに、 予 め設定された時間間隔で上記入力信号切換手段 51の切換動作を制御する切換制 御手段 52を設けて、 上記各計測器 11 A〜l 1 Cからの出力を順次 0N/〇F F信号のパルス列として出力する計測値出力装置 50を構成することも可能であ る At this time, as the pulse train of each ON / OFF signal, a single bit may be added for each unit, but the molding devices are divided into groups of several units for each type of molding device and set temperature. , may be output with a start bit s l3 s 2, s 3 for each of the groups. In the above second and third embodiments, a plurality of ON / OF signal output devices 30 are connected. The case where the magnitude of each measurement value measured by a plurality of measuring instruments 11A to 11C is output as a pulse train of the 〇N / OFF signal has been described, but as shown in FIG. The above measuring instruments 11A to: L1C are connected in front of the signal output device 30, and the output signals of the above measuring instruments 11A to 11C are selected and sent to the signal converter 33 of the ON / OFF signal output device 30. A switching means 51 is provided, and a switching control means 52 for controlling the switching operation of the input signal switching means 51 at a preset time interval is provided to output the outputs from the measuring instruments 11A to 11C. It is also possible to configure a measurement value output device 50 that sequentially outputs a pulse train of 0N / 〇FF signal
また、 第 13図に示すように、 図示しない生産ラインの k台のモー夕の電流値 を、 電流センサ 17 a, 17 b, ····, 17 k, 及び、 その検出回路 18 a， 1 8b, ····， 18 kを備えた電流検出装置 17 A〜l 7 Kで検出し、 これらの電 流値を上記計測値出力装置 50に入力して、 順次 0 N/0 F F信号のパルス列と して出力することも可能である。  As shown in FIG. 13, the current values of k motors on a production line (not shown) are measured by current sensors 17a, 17b,..., 17k, and their detection circuits 18a, 1 8b,..., 18 k, are detected by the current detectors 17 A to 17 K. These current values are input to the measurement output device 50, and the 0 N / 0 FF signals are sequentially output. It is also possible to output as a pulse train.
産業上の利用可能性 Industrial applicability
以上説明したように、 本発明によれば、 所定の時間毎に、 計測された計測値の 大きさに対応する時間だけ、 0 Ν状態あるいは 0 F F状態が継続する 0 Ν/〇 F F信号を出力する手段を設けることにより、 簡単な構成で、 所定時間毎に計測値 の大きさを表わす信号を出力することのできる計測値出力装置を得ることができ る。 また、 本発明の出力装置から出力される信号は 2値の信号であるので、 例え ば、 マイクロコンピュー夕などへの接続を容易にすることができる。  As described above, according to the present invention, a 0Ν / 〇FF signal in which the 0Ν state or the 0FF state continues for a time corresponding to the magnitude of the measured value is output at every predetermined time. By providing the means for performing the above, it is possible to obtain a measurement value output device capable of outputting a signal representing the magnitude of the measurement value at predetermined time intervals with a simple configuration. Further, since the signal output from the output device of the present invention is a binary signal, it is possible to easily connect to, for example, a microcomputer.
また、 上記計測値出力装置を複数台備え、 上記複数の ON/OFF信号を所定 の時間間隔で順次出力するようにしたので、 簡単な構成で、 所定時間毎に計測値 の大きさを表わす複数の信号をシリーズに出力することができる。  Also, since a plurality of the measurement value output devices are provided and the plurality of ON / OFF signals are sequentially output at predetermined time intervals, a simple configuration is used to indicate the magnitude of the measurement value at predetermined time intervals. Can be output to the series.
また、 導線に流れる電流を計測する電流計測手段と、 所定の時間毎に、 上記計 測された電流の大きさに対応する時間だけ〇N状態あるいは OFF状態が継続す る 0 NZO F F信号を順次出力する 0 N/〇 F F信号出力手段とを備えた電流値 出力装置を構成することにより、 簡単な構成で、 導線に流れる電流値を計測して 出力することができる。 In addition, a current measuring means for measuring a current flowing through the conductor, and a NZO FF signal in which the 〇N state or the OFF state continues for a time corresponding to the magnitude of the measured current at predetermined time intervals. Current value with output 0 N / 〇 FF signal output means By configuring the output device, it is possible to measure and output the current value flowing through the conductor with a simple configuration.

Claims

請 求 の 範 囲 The scope of the claims
1. 計測器あるいはセンサにより計測された計測値を入力し、 上記計測値をそ の大きさに対応する時間幅に変換する信号変換手段と、 所定の時間毎に、 上記時間幅に対応する時間だけ ON状態あるいは◦ F F状態が継続する〇 N/OFF信号を出力する計測値出力手段とを備えたことを特徴とする計 測値の出力装置。 '  1. A signal conversion means for inputting a measured value measured by a measuring instrument or a sensor and converting the measured value into a time width corresponding to the magnitude, and a time corresponding to the time width at predetermined intervals. A measurement value output device that outputs an N / OFF signal. '
2. 上記信号変換手段の前段に、 複数の計測器あるいはセンサに接続され、 上 記各計測器あるいはセンサからの出力を選択して信号変換手段に出力する 入力信号切換手段を設けたことを特徴とする請求の範囲 1に記載の計測値 の出力装置。  2. An input signal switching means, which is connected to a plurality of measuring instruments or sensors and selects an output from each of the measuring instruments or sensors and outputs the selected signal to the signal converting means, is provided before the signal converting means. The output device of the measured value according to claim 1, wherein
3. 計測器あるいはセンサにより計測された計測値を入力し、 上記計測値をそ の大きさに対応する時間幅に変換する信号変換手段と、 所定の時間毎に、 上記時間幅に対応する時間だけ 0 N状態あるいは 0 F F状態が継続する〇 NZOFF信号を出力する計測値出力手段とを備えた計測値変換装置を複 数台備え、 上記変換された複数の ON/OFF信号を所定の時間間隔で順 次出力するようにしたことを特徴とする計測値の出力装置。  3. A signal conversion means for inputting a measured value measured by a measuring instrument or a sensor and converting the measured value into a time width corresponding to the magnitude, and a time corresponding to the time width at predetermined time intervals. Only the 0 N state or the 0 FF state continues.〇 A plurality of measurement value converters equipped with a measurement value output unit that outputs an NZOFF signal are provided. A measurement value output device characterized in that the measurement value is output sequentially.
4. 上記 ONZOFF信号の前に、 当該計測値を表わすパルス信号を出力する ようにしたことを特徴とする請求の範囲 2または請求の範囲 3に記載の計 測値の出力装置。  4. The measured value output device according to claim 2 or 3, wherein a pulse signal representing the measured value is output before the ONZOFF signal.
5. 請求の範囲 1〜請求の範囲 4のいずれかに記載の計測値の出力装置と、 こ の出力装置から出力された〇 NZO F F信号の 0 N時間または OFF時間 の長さを監視する監視手段とを備えたことを特徴とする計測値監視装置。 5. An output device for the measured value according to any one of claims 1 to 4, and a monitor for monitoring the length of 0 N time or OFF time of the NZO FF signal output from the output device. And a means for monitoring a measured value.
6. 導線に流れる電流を計測する電流計測手段と、 所定の時間毎に、 上記計測 された電流の大きさに対応する時間だけ ON状態あるいは OFF状態が継 続する 0 NZO F F信号を順次出力する ON/0 F F信号出力手段とを備 えたことを特徴とする電流値出力装置。 6. Current measuring means for measuring the current flowing in the conductor, and output the NZO FF signal sequentially at a predetermined time, the ON state or the OFF state continues for a time corresponding to the magnitude of the measured current. A current value output device comprising an ON / OFF signal output means.
7. 導線に流れる電流を計測する電流計測手段と、 所定の時間毎に、 上記計測 された電流の大きさに対応する時間だけ ON状態あるいは OFF状態が継 続する 0 NZO F F信号を順次出力する 0 NZO F F信号出力手段とを備 えた電流値変換装置を複数台備え、 上記変換された複数の ON/0 F F信 号を所定の時間間隔で順次出力するようにしたことを特徴とする電流値出 7. Current measuring means for measuring the current flowing in the conductor, and output the NZO FF signal sequentially at a predetermined time, which keeps the ON state or OFF state for the time corresponding to the magnitude of the measured current. 0 NZO FF signal output means A plurality of current value conversion devices obtained as described above, and the plurality of converted ON / OFF signals are sequentially output at predetermined time intervals.
8. 上記 ON/OFF信号の前に、 検出対象を表わすパルス信号を出力するよ うにしたことを特徴とする請求の範囲 7に記載の電流値出力装置。 8. The current value output device according to claim 7, wherein a pulse signal representing a detection target is output before the ON / OFF signal.
9. 請求の範囲 6〜請求の範囲 8のいずれかに記載の電流値出力装置と、 この 電流値出力装置から出力された ON/OFF信号の 0 N時間又は 0 F F時 間の長さを監視する監視手段とを備えたことを特徴とする電流監視装置。 9. Monitor the current value output device according to any one of claims 6 to 8 and the length of 0 N time or 0 FF time of the ON / OFF signal output from the current value output device. A current monitoring device comprising:
10. 上記 ONZOFF信号の ON時間又は OFF時間の長さが所定の時間以 上継続した場合にはパルス信号を出力する手段と、 上記出力されたパルス のパルス数を積算する手段と、 上記積算されたパルス数が所定の値を超え たときに警報を発する警報手段とを備えたことを特徴とする請求の範囲 9 に記載の電流監視装置。 10. A means for outputting a pulse signal when the ON time or OFF time of the ONZOFF signal continues for a predetermined time or more, a means for integrating the number of pulses of the output pulses, 10. The current monitoring device according to claim 9, further comprising alarm means for issuing an alarm when the number of pulses exceeds a predetermined value.
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